公开(公告)号：US09002356B2

公开(公告)日：2015-04-07

申请号：US12771706

申请日：2010-04-30

申请人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

发明人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

IPC分类号： H04W36/00 ,  H04W36/08 ,  H04W8/20 ,  H04W48/08

CPC分类号： H04W36/0038 ,  H04W8/20 ,  H04W12/08 ,  H04W36/08 ,  H04W48/08

摘要： Access control for an access point (e.g., a cell of the access point) may be based on an access mode associated with the access point. For example, depending on the access mode, access control may involve performing a membership check for the access point. Such a membership check may be performed at a network entity, a source access point, or some other suitable location in a network. In some aspects, access control may involve performing a membership check for an access point in conjunction with a context fetch procedure. Such a procedure may be performed, for example, when an access terminal arrives at the access point after experiencing RLF at another access point.

公开(公告)号：US08634313B2

公开(公告)日：2014-01-21

申请号：US12818064

申请日：2010-06-17

申请人： Nathan Edward Tenny ,  Parag Arun Agashe ,  Peter Gaal ,  Tingfang Ji ,  Ravi Palanki ,  Rajat Prakash

发明人： Nathan Edward Tenny ,  Parag Arun Agashe ,  Peter Gaal ,  Tingfang Ji ,  Ravi Palanki ,  Rajat Prakash

IPC分类号： H04W56/00

CPC分类号： H04W56/0045

摘要： Aspects are disclosed for facilitating a timing alignment in a multicarrier system. In one aspect, at least one downlink timing associated with at least one downlink carrier is determined, and an uplink timing associated with an uplink group of carriers is ascertained based on at least one downlink timing and a timing offset associated with the uplink group of carriers. Each of the uplink group of carriers is then transmitted within a threshold value of the uplink timing. In another aspect, a downlink communication is transmitted to a wireless terminal via at least one downlink carrier. This embodiment further includes assigning a timing offset to an uplink group of carriers, and providing the timing offset to the wireless terminal via the at least one downlink carrier. An uplink communication is then received via the uplink group of carriers according to the timing offset.

摘要翻译： 公开了用于促进多载波系统中的定时对准的方面。 在一个方面，确定与至少一个下行链路载波相关联的至少一个下行链路定时，并且基于与上行链路群组相关联的至少一个下行链路定时和定时偏移来确定与载波的上行链路组相关联的上行链路定时 。 然后在上行链路定时的阈值内发送每个上行链路载波组。 另一方面，经由至少一个下行链路载波将下行链路通信发送到无线终端。 该实施例还包括向上行链路群组分配定时偏移，以及经由至少一个下行链路载波向无线终端提供定时偏移。 然后，根据定时偏移，经由上行链路群组接收上行链路通信。

公开(公告)号：US20110275394A1

公开(公告)日：2011-11-10

申请号：US13085373

申请日：2011-04-12

申请人： Osok Song ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Taesang Yoo ,  Parag Arun Agashe ,  Madhavan Srinivasan Vajapeyam ,  Yongbin Wei ,  Tao Luo ,  Rajat Prakash ,  Masato Kitazoe

发明人： Osok Song ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Taesang Yoo ,  Parag Arun Agashe ,  Madhavan Srinivasan Vajapeyam ,  Yongbin Wei ,  Tao Luo ,  Rajat Prakash ,  Masato Kitazoe

IPC分类号： H04W72/04

CPC分类号： H04W72/082 ,  H04W72/08

摘要： Methods and apparatus for partitioning resources for enhanced inter-cell interference coordination (eICIC) are provided. Certain aspects involve broadcasting a message indicating time-domain resource partitioning information (RPI), where a user equipment (UE) may be operating in idle mode. With the RPI, the UE may be able to identify protected resources with reduced/eliminated interference from neighboring cells. The RPI in this broadcasted message may be encoded as a bitmap as an alternative or in addition to enumeration of the U/N/X subframes. Other aspects entail transmitting a dedicated or unicast message indicating the time-domain RPI, where a UE may be operating in connected mode. With the RPI, the UE may be able to determine channel state information (CSI), make radio resource management (RRM) measurements, or perform radio link monitoring (RLM), based on one or more signals from a serving base station during the protected time-domain resources.

摘要翻译： 提供了用于分区资源以增强小区间干扰协调（eICIC）的方法和装置。 某些方面涉及广播指示时域资源划分信息（RPI）的消息，其中用户设备（UE）可以在空闲模式下操作。 利用RPI，UE可能能够识别来自相邻小区的减少/消除的干扰的受保护资源。 该广播消息中的RPI可以被编码为位图，作为U / N / X子帧的枚举的替代或补充。 其他方面需要发送指示时域RPI的专用或单播消息，其中UE可以在连接模式下操作。 利用RPI，UE可以在受保护的基站期间基于来自服务基站的一个或多个信号来确定信道状态信息（CSI），进行无线电资源管理（RRM）测量或执行无线电链路监视（RLM） 时域资源。

公开(公告)号：US20110158116A1

公开(公告)日：2011-06-30

申请号：US12818064

申请日：2010-06-17

申请人： Nathan Edward Tenny ,  Parag Arun Agashe ,  Peter Gaal ,  Tingfang Ji ,  Ravi Palanki ,  Rajat Prakash

发明人： Nathan Edward Tenny ,  Parag Arun Agashe ,  Peter Gaal ,  Tingfang Ji ,  Ravi Palanki ,  Rajat Prakash

IPC分类号： H04W56/00 ,  H04W72/04 ,  H04L12/26

CPC分类号： H04W56/0045

摘要： Aspects are disclosed for facilitating a timing alignment in a multicarrier system. In one aspect, at least one downlink timing associated with at least one downlink carrier is determined, and an uplink timing associated with an uplink group of carriers is ascertained based on at least one downlink timing and a timing offset associated with the uplink group of carriers. Each of the uplink group of carriers is then transmitted within a threshold value of the uplink timing. In another aspect, a downlink communication is transmitted to a wireless terminal via at least one downlink carrier. This embodiment further includes assigning a timing offset to an uplink group of carriers, and providing the timing offset to the wireless terminal via the at least one downlink carrier. An uplink communication is then received via the uplink group of carriers according to the timing offset.

摘要翻译： 公开了用于促进多载波系统中的定时对准的方面。 在一个方面，确定与至少一个下行链路载波相关联的至少一个下行链路定时，并且基于与上行链路群组相关联的至少一个下行链路定时和定时偏移来确定与载波的上行链路组相关联的上行链路定时 。 然后在上行链路定时的阈值内发送每个上行链路载波组。 另一方面，经由至少一个下行链路载波将下行链路通信发送到无线终端。 该实施例还包括向上行链路群组分配定时偏移，以及经由至少一个下行链路载波向无线终端提供定时偏移。 然后，根据定时偏移，经由上行链路群组接收上行链路通信。

公开(公告)号：US09584290B2

公开(公告)日：2017-02-28

申请号：US12953356

申请日：2010-11-23

申请人： Rajat Prakash ,  Jelena M. Damnjanovic ,  Peter Gaal ,  Parag Arun Agashe ,  Valentin Alexandru Gheorghiu ,  Masato Kitazoe ,  Ravi Palanki

发明人： Rajat Prakash ,  Jelena M. Damnjanovic ,  Peter Gaal ,  Parag Arun Agashe ,  Valentin Alexandru Gheorghiu ,  Masato Kitazoe ,  Ravi Palanki

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04W72/00 ,  H04W72/02

CPC分类号： H04L5/0064 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0087 ,  H04L5/0098 ,  H04W72/00 ,  H04W72/02

摘要： Systems, methods and apparatuses are provided that facilitate selecting resources, such as time slots, subframes, etc., for performing bandwidth switching related to activating and/or deactivating one or more carriers. A data portion of one or more subframes can be selected for performing bandwidth switching. In addition, a device can determine whether one or more downlink grants are received in the one or more subframes, and can avoid selecting such subframes. The device can alternatively perform the bandwidth switching and request retransmission of the data portion. Additionally or alternatively, the device can determine a type of the one or more subframes and/or signals transmitted in the one or more subframes to determine whether to perform bandwidth switching in the subframes. The bandwidth switching can include changing a sampling rate, reconfiguring frequency filters, modifying a local oscillator, etc.

摘要翻译： 提供了系统，方法和装置，其便于选择诸如时隙，子帧等的资源，用于执行与激活和/或去激活一个或多个载体相关的带宽切换。 可以选择一个或多个子帧的数据部分来执行带宽切换。 此外，设备可以确定在一个或多个子帧中是否接收到一个或多个下行链路许可，并且可以避免选择这样的子帧。 该设备可替代地执行带宽切换并请求数据部分的重传。 附加地或替代地，设备可以确定在一个或多个子帧中发送的一个或多个子帧和/或信号的类型，以确定是否在子帧中执行带宽切换。 带宽切换可以包括改变采样率，重新配置频率滤波器，修改本地振荡器等。

公开(公告)号：US08954077B2

公开(公告)日：2015-02-10

申请号：US12771721

申请日：2010-04-30

申请人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

发明人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

IPC分类号： H04W36/00 ,  H04W36/08 ,  H04W8/20 ,  H04W48/08

CPC分类号： H04W36/0038 ,  H04W8/20 ,  H04W12/08 ,  H04W36/08 ,  H04W48/08

摘要： Access control for an access point (e.g., a cell of the access point) may be based on an access mode associated with the access point. For example, depending on the access mode, access control may involve performing a membership check for the access point. Such a membership check may be performed at a network entity, a source access point, or some other suitable location in a network. In some aspects, access control may involve performing a membership check for an access point in conjunction with a context fetch procedure. Such a procedure may be performed, for example, when an access terminal arrives at the access point after experiencing RLF at another access point.

摘要翻译： 接入点（例如接入点的小区）的接入控制可以基于与接入点相关联的接入模式。 例如，根据访问模式，访问控制可以包括执行接入点的成员资格检查。 这样的成员资格检查可以在网络实体，源接入点或网络中的某个其他合适的位置执行。 在一些方面，访问控制可以包括结合上下文获取过程执行接入点的成员资格检查。 这样的过程可以例如在接入终端在另一接入点经历RLF之后到达接入点时执行。

公开(公告)号：US20100279687A1

公开(公告)日：2010-11-04

申请号：US12771721

申请日：2010-04-30

申请人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

发明人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

IPC分类号： H04W60/00 ,  H04W36/00

CPC分类号： H04W36/0038 ,  H04W8/20 ,  H04W12/08 ,  H04W36/08 ,  H04W48/08

摘要： Access control for an access point (e.g., a cell of the access point) may be based on an access mode associated with the access point. For example, depending on the access mode, access control may involve performing a membership check for the access point. Such a membership check may be performed at a network entity, a source access point, or some other suitable location in a network. In some aspects, access control may involve performing a membership check for an access point in conjunction with a context fetch procedure. Such a procedure may be performed, for example, when an access terminal arrives at the access point after experiencing RLF at another access point.

公开(公告)号：US20100278147A1

公开(公告)日：2010-11-04

申请号：US12771706

申请日：2010-04-30

申请人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

发明人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

IPC分类号： H04W4/00

CPC分类号： H04W36/0038 ,  H04W8/20 ,  H04W12/08 ,  H04W36/08 ,  H04W48/08

摘要： Access control for an access point (e.g., a cell of the access point) may be based on an access mode associated with the access point. For example, depending on the access mode, access control may involve performing a membership check for the access point. Such a membership check may be performed at a network entity, a source access point, or some other suitable location in a network. In some aspects, access control may involve performing a membership check for an access point in conjunction with a context fetch procedure. Such a procedure may be performed, for example, when an access terminal arrives at the access point after experiencing RLF at another access point.

摘要翻译： 接入点（例如接入点的小区）的接入控制可以基于与接入点相关联的接入模式。 例如，根据访问模式，访问控制可以包括执行接入点的成员资格检查。 这样的成员资格检查可以在网络实体，源接入点或网络中的某个其他合适的位置执行。 在一些方面，访问控制可以包括结合上下文获取过程执行接入点的成员资格检查。 这样的过程可以例如在接入终端在另一接入点经历RLF之后到达接入点时执行。

公开(公告)号：US09226288B2

公开(公告)日：2015-12-29

申请号：US13085080

申请日：2011-04-12

申请人： Alan Barbieri ,  Tingfang Ji ,  Tao Luo ,  Madhavan Srinivasan Vajapeyam ,  Osok Song ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Parag Arun Agashe ,  Durga Prasad Malladi

发明人： Alan Barbieri ,  Tingfang Ji ,  Tao Luo ,  Madhavan Srinivasan Vajapeyam ,  Osok Song ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Parag Arun Agashe ,  Durga Prasad Malladi

IPC分类号： H04W4/00 ,  H04W72/04 ,  H04W72/00 ,  H04W72/12

CPC分类号： H04W72/0426 ,  H04W72/005 ,  H04W72/1231 ,  H04W72/1289

摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which an apparatus may determine broadcast channel scheduling information for one or more broadcasts of a payload by a broadcast channel associated with a first base station based on one or more broadcast channel interference coordination schemes, wherein reception of the broadcast channel associated with the first base station is interfered at least in part based on one or more transmissions from a second base station, and receive the payload based on the determined broadcast channel scheduling information.

摘要翻译： 提供了一种用于无线通信的方法，装置和计算机程序产品，其中装置可以基于一个或多个广播来确定与第一基站相关联的广播信道的有效载荷的一个或多个广播的广播信道调度信息 信道干扰协调方案，其中与第一基站相关联的广播信道的接收至少部分地基于来自第二基站的一个或多个传输被干扰，并且基于所确定的广播信道调度信息来接收有效载荷。

公开(公告)号：US08948395B2

公开(公告)日：2015-02-03

申请号：US11843583

申请日：2007-08-22

申请人： Vidya Narayanan ,  Lakshminath Reddy Dondeti ,  Parag Arun Agashe ,  Paul E. Bender

发明人： Vidya Narayanan ,  Lakshminath Reddy Dondeti ,  Parag Arun Agashe ,  Paul E. Bender

IPC分类号： H04L29/06 ,  H04W12/04 ,  H04L9/08 ,  H04W36/08

CPC分类号： H04L63/062 ,  H04L9/0844 ,  H04L9/0891 ,  H04L2209/80 ,  H04L2463/061 ,  H04W12/04 ,  H04W36/08

摘要： A novel key management approach is provided for securing communication handoffs between and access terminal and two access points. This approach provides for securely handing off communications between an access terminal and access point without risking exposure a master key for the access terminal. Temporary master keys are derived for low latency handoffs and secure authentication between a new access point and the access terminal. In one aspect, a distributive key management scheme is provided in which a current access point generates a new security key (based on its own security key) that is used by the next access point with which an access terminal communicates. In another aspect, a centralized key management scheme is provided in which a central authenticator maintains, generates, and distributes new security keys (based on a master security key associated with the access terminal) to access points.

摘要翻译： 提供了一种新颖的密钥管理方法，用于保证接入终端与两个接入点之间的通信切换。 这种方法提供了安全地切断接入终端和接入点之间的通信，而不会冒着接入终端的主密钥的风险。 派生临时主密钥用于低延迟切换和新接入点与接入终端之间的安全认证。 一方面，提供一种分配密钥管理方案，其中当前接入点生成由接入终端与之通信的下一个接入点使用的新的安全密钥（基于其自身的安全密钥）。 在另一方面，提供一种集中式密钥管理方案，其中中央认证器维护，生成和分发新的安全密钥（基于与接入终端相关联的主安全密钥）到接入点。